Step 1: Installing dependencies
You will need Node, Watchman, the React Native command line interface, and Xcode.
We recommend installing Node and Watchman using Homebrew. Run the following commands in a Terminal after installing Homebrew:
brew install node brew install watchman
If you have already installed Node on your system, make sure it is version 6 or newer.
To check node version run the following commands in a Terminal
Update Node Using a Package Manager
Node package manager, or npm, helps you discover, share, and use code, along with managing dependencies.
Node comes with npm pre-installed, but the manager is updated more frequently than Node.
Run npm -v
to see which version you have, then
npm install npm@latest -g
to install the newest npm update.
Run npm -v
again if you want to make sure npm updated correctly.
To update Node, you’ll need npm’s handy n module. Run this code to clear npm’s cache, install n, and install the latest stable version of Node:
sudo npm cache clean -f sudo npm install -g n sudo n stable
To install the latest release, use n latest. Alternatively, you can
run n #.#.#
to get a specific Node version.